Valve.



PATENTED MAY 30, 1905.

0. B. ANGLIM.

VALVE.

APPLIOATION FILED MAR.29,1904- 3 SHEETS-SHEET 1.

Isa/45 WITNESSES- No. 791,173. PATENTBD MAY 30, 1905..

G. E." ANGLIM.

VALVE. APPLICATION FILED MAR. 29, 1904.

s SHEETS-SHEET 2.

C g v m No. 791,173. PATBNTED MAY 30, 1905. 0. E. AN-GLIM.

VALVE.

APPLICATION FILED MAB.29,1904.

3 SHEETS SHEI-IT 3.

I KW 3 Y Patented'May 30, 1905.

PATENT OFFICE.

CLARENCE E. ANGLIM, OF BROCKTON, MASSACHUSETTS.

VALVE.

SPECIFICATION forming part of Letters Patent N0. 791,173, dated May 30, 1905.

Application filed March 29, 1904. Serial No. 200,516.

To all whom it may concern:

ton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Valves, of which the following is a specification.

This invention relates to gate-valves, and specifically to the class known as straightway valves; and the principal objects of my invention are to provide a valve of this character in which the operative portion of the valve does not present a Hat surface to a corresponding flat surface at right angles thereto, whereby particles of matter are held between said surfaces to the injury of the same and to enable the two opposite valves or plugs to approach the side valve-seats and recede from them in a horizontal line and when at a short distance therefrom to approach and recede in a vertical line. In order to accomplish these objects, I provide a verticallymoving valve-stem, a central oppositely-inclined or wedge-shaped head, and valves on opposite sides of said head having inner faces which are inclined to correspond with the wedge-shaped head, and other details of construction fully described below, all as illustrated in the accompanying drawings, in which Figure 1 is a central vertical section taken through the case and bonnet of a valve mechanism embodying my invention, the head and valves being shown in elevation and a small portion of one of the valves being broken out, the valve being represented as closed. Fig. 2 is a similar sectional view of the lower portion' of the device, the valves being represented in full lines as having left their seats in a horizontal line, but without having moved in a vertical line, and in dotted lines in the position assumed at the end of their upward movement. Fig. 3 is a horizontal section taken on line 3, Fig. 1. Fig. 4 is a plan View of the case or body with the bonnet, valves, and valve mechanism removed. Fig. 5. isa vertical section taken on line 5, Fig. 4.

Similar letters of reference indicate corresponding parts.

arepresents the body portion or case formed with the oppositely extending horizontal ports 6, provided at their inner ends with the rings or seats 0. The upper end of this case is screw-threaded to receive the bonnet (Z, provided with the integral upward extensions 0, which support an internally-screw-threaded head or nut f,- surmounted by a check-nut f, said parts d, e, f, and f not being new in this invention.

9 represents a vertical valve-stem whose central smooth portion has its bearings in the bushing d within and supported by the bonnet, and this valve-stem is provided at its upper portion with the right thread IL and its lower portion with the left thread it, the stem being operated by the hand-wheel g. The thread h is in engagement with the nut f, and the thread it extends into and is in engagement with the internally-threaded head is. This head has integral with it oppositely-extending wings or operative portions in, the outer surfaces of said wings being oppositely inclined vertically or wedge-shaped, as illustrated in Figs. 1 and 2. The opposite faces of these wings Z? are provided vertically with central tongues Z, T-shaped in cross-section, as shown in Fig. 3, said tongues engaging slidingly with T-shaped grooves m on the inner faces of the valves a, said valves being provided with the outwardly-extending coneshaped rings 9, adapted to fit into and against the seats 0. The inner faces of the valves n are beveled or inclined to correspond with the faces of the opposite wings in of the wedgeshaped head is, and the T-shaped tongues Z are prevented from sliding longitudinally out of engagement with the correspondinglyshaped grooves m by locking-pins g, which project horizontally from the tongues into grooves 1', which extend centrally from the bottoms of the grooves am, said grooves 1 end- I the ribs being of even height, but the lower end of the rib 2. extending to the bottom of the case, while the lower end of the rib a is at a considerable distance above the bottom and is curved or beveled at u, as shown in Fig. 5. The pairs of ribs on one side of the case are opposite the pairs of ribs on the other side, and the ribs of each pair produce a vertical groove or slideway 'u of suitable width to receive one of the annular flanges c.

When the parts are in the position indicated in Figs. 1 and 3, the head is closed, both of the cones t being seated on the rings 0. To open the head, the hand-wheel g is turned toward the left, thus causing the thread h to lift the head 76. While this head is beinglifted from the point shown in Fig. 1 to that shown in full lines in Fig. 2, the T-shaped tonguesl on the inwardly-inclined or wedge-shaped wings it" draw inward the valves a by means of the engagement of said tongues with the grooves m until said plugs have reached the position indicated by full lines in Fig. 2. During the inward horizontal movement the valves rest on the guides 20 and move between guides y, integral with the case, until the flanges s have passed under the curved lower ends a of the ribs 14 and strike the outer surface of the long ribs t, as indicated in full lines in Fig.

3 2. Further rotation of the valve-stem 9 draws the head it and the valves 71 vertically upward by means of the pins said inward movement being guided by the grooves 4;, Within which the flanges s are'coniined by means of the ribs 25 and at until the upward movement terminates with the partsin the position indicated by dotted lines in Fig. 2. When the parts are in this position, they are entirely raised above the level of the ports and an absolutely clear passage is provided from the inlet to the outlet. To close the head, the hand-wheel is re- -tated in the opposite direction, and the head and its valves move vertically from the position indicated in dotted lines in Fig. 2 to that indicated in full lines in the same figure, and the valves then move outward horizontally between the bottom guides w and side guides 3 until the head has reached the point indicated in Fig. 1 and the valves have closed both the inlet and the outlet. Owing to the sliding contact between the opposite faces of the head Z". and the inner faces of the valves 12., any solid or sharp substance on any of the said faces is pushed off by the movement of the head, and hence such substances cannot grind into and injure said surfaces.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In avalve mechanism of the character described, the vertically-moving stem screwthreaded at its lower end; the head Z: on said stem and in engagement with the screw-threml said head being provided with the oppositelyextend'ing horizontal wings k the opposite faces of which are oppositely inclined or wedge-shaped; the valves or formed with inner surfaces or faces at angles corresponding to the inclined faces of the head, said valves being provided at their outer ends with the coneshaped rings 1), vertical guides on the inner surface of the case; and horizontal guides on the inner surface of the case, whereby the valves are guided vertically and horizontally as they are actuated by the wedge-shaped head, substantially as described.

2. In avalve mechanism of the character described, the verticallymoving stem 1; the head 7i: on said stem, said head being provided with the oppositely extending horizontal wings Z1 whose opposite faces are oppositely inclined or wedge shaped; the T- shaped tongues Z extending horizontally from the inclined faces of said wings; the valves /1 with inner surfaces or faces at angles corresponding with the inclined faces of the heads, said faces being formed with T shaped grooves whereby the adjacent faces of the valves and wedge-shaped wings are held slidingly in engagement; the pairs of vertical guides f on the inner surface of the case; and the flanges or projections 8 extending from said valves between said guides, substantially as and for the purpose set forth.

3. In avalve mechanism of the character described, the head Z': provided with the wedgeshaped wings is, the faces of said wings being formed with the tongues Z; the valves 1/. provided with inner surfaces at angles corresponding to the surfaces on the wedge-shaped wings, said inner surfaces being formed with the grooves m; mechanism intermediate of the head and valves whereby the valves cannot become disengaged from the head; the vertical guides t on the inner surface of the ease; the vertical guides 11 on the inner surface of the case, said guides having their lower ends at points above the lower ends of the guides t; and projections a on the valves adapted as said valves move inwardly to pass under the guides a and against the guides substantiallyas and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ULARENGE E. ANGL'IM.

Witnesses:

A. K. H001), HENRY W. \VILLIAMs. 

